Abstract
We prepared large single domain of DyBaCuO (Dy-123) superconductor for future applications such as a superconducting flywheel for energy storage system, magnetic separation, and a bulk magnet. Dy-123 superconductors are expected to have high Jc and trapped field properties. Melt-textured single domain of Dy-123 system superconductor about 48mm in diameter and 10mm in thickness was fabricated with a seeding and temperature gradient method in air. Dy-123 and Dy-211 powders were mixed in a molar ratio of 1:0.3, and Ag2O of 10wt% and Pt of 0.5wt% were added to the mixture. The maximum trapped magnetic field over the bulk was approximately 0.2T at 77.3K. We also discussed mechanical properties such as the hardness and the surface roughness of the Dy-123 bulk. Vickers hardness and surface roughness results showed some basic and useful information for evaluating Dy-123 bulks.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
